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Xiaocheng Li

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#machine learning Preprint Jul 2023

Understanding Uncertainty Sampling via Equivalent Loss

The equivalent loss is introduced, whose gradient is the original loss gradient multiplied by the query probability, which derives a finite-sample excess-risk bound with a fixed learning rate and an explicit constant controlling the tradeoff between initial error and query-weighted gradient variance.

Shang Liu, Xiaocheng Li · 14 citations · ⚡1